156931820

素因数分解:

$2^2\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{3631}}^1$

素因数の和:5801

約数の個数: 24

約数和(自身を含む): 329800128

約数和(自身を除く): 172868308

約数列:

[1, 2, 4, 5, 10, 20, 2161, 3631, 4322, 7262, 8644, 10805, 14524, 18155, 21610, 36310, 43220, 72620, 7846591, 15693182, 31386364, 39232955, 78465910, 156931820]

約数ペア:

[(1, 156931820), (2, 78465910), (4, 39232955), (5, 31386364), (10, 15693182), (20, 7846591), (2161, 72620), (3631, 43220), (4322, 36310), (7262, 21610), (8644, 18155), (10805, 14524)]